Mackenzie Phillips is setting the media ablaze with her revelation that she had sex with her father. Having come this far, just what will celebrity biographies have to confess to get attention a decade from now? Here's a preview!

Celebrity memoirs often focus on stereotypical subjects, like drug abuse and insecurity. How…
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These days, just about any celeb can get a book deal, but if they really want to get on Oprah and sell millions of copies, they need to come up with some sort of attention grabbing scandal that will catapult their tome up the best-sellers lists. It started innocently enough, in 1992, former Greg Brady, Barry Williams, wrote in his book Growing Up Brady that he had relationships with both is on-screen mother and sister. In 2003 Anne Heche's Call Me Crazy alleged sexual abuse as well as communicating with aliens. There aren't many other places to go after that. Last year John Lennon: The Life upped the ante by claiming that the Beatle not only had a gay relationship with Paul McCartney, but was also in love with his mother.

As the literary one-upsmanship continues from fake incest to aliens to real incest and gay relationships, the famous are going to have to dig deep to find accusations that will actually shock us into buying their sorry books.

2010: A new book about Elizabeth Taylor says that her secret to longevity is because she practiced Satanism at an altar in her basement. She also served as the inspiration for both Rosemary's Baby and Angel Heart.

2014: After his lover performing partner Roy's death, Siegfried Fischbacher writes a book about their life together and alleges that the only comfort Roy could find after his tiger mauling accident came when he started having sex with tigers. But only female tigers, because they are definitely not gay.

2017: Michael Phelps appears on the final season of Oprah to talk about his new book. He admits that during the Olympics he was on hormones, not because he needed extra speed, but because he's really a woman.

2020: Jennifer Aniston is finally ready to open up about her marriage to John Mayer, who wasn't really a human at all, but a shape shifting demon that she summoned through witchcraft and virgin sacrifice to kill Angelina Jolie. She fell in love with him instead. Mayer has no comment, but returns to the pits of Hades from whence he came.

2023: Lauren Conrad writes about her slide from fame into obscurity and how the loss of self-esteem lead her to make some odd career choices. She became a mid-priced hooker and drug trafficker that also ran a ring of very, very cruel puppy farms. Still, no one really cares.

2029: Suri Cruise finally pens a book saying that her mother married her father to become more famous and that her father often trapped them in the house for long stretches of time, not letting them talk to outsiders. She also says that they were involved in a cult with its own uniforms and crazy languages and that it kept her father from expressing his homosexual desires. It also eventually stole all of his money. Come on. Who's going to believe that?